/* web10 - 全新布局设计系统 */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --accent: #f59e0b;
    --dark: #0f172a;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --white: #ffffff;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    scroll-behavior: smooth;
}

/* 桌面端：为侧边栏留出空间 */
@media (min-width: 1024px) {
    body {
        padding-left: 260px;
    }
}

.st20-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 按钮 */
.st20-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}
.st20-btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}
.st20-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}
.st20-btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}
.st20-btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

/* 内页通用 */
.st20-page-hero {
    /*display: none;*/
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}
.st20-page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.st20-page-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}
.st20-page-content {
    padding: 80px 0;
}
.st20-content-box {
    background: var(--white);
    padding: 48px;
    margin: 32px 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

/* 响应式 */
@media (max-width: 768px) {
    .st20-container {
        padding: 0 16px;
    }
    .st20-page-hero h1 {
        font-size: 2rem;
    }
    .st20-content-box {
        padding: 32px 24px;
    }
}

/* Hero: 大图+文字分屏 */
.st20-hero-magazine {
    display: grid;
    grid-template-columns: 1fr 1fr;
    /*min-height: 90vh;*/
    margin-top: 0;
}
.st20-hero-image-wrapper {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.st20-hero-image-wrapper img {
    /*width: 100%;*/
    /*height: 100%;*/
    object-fit: cover;
}
.st20-hero-content-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-soft);
    padding: 80px 48px;
}
.st20-hero-content {
    max-width: 500px;
}
.st20-hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--dark);
}
.st20-hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 32px;
}
.st20-hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* 价值主张：大数字展示 */
.st20-values-showcase {
    padding: 100px 0;
    background: var(--white);
}
.st20-values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.st20-value-card {
    text-align: center;
    padding: 48px 32px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}
.st20-value-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
}
.st20-value-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}
.st20-value-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-value-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 服务：Masonry 网格 */
.st20-services-masonry {
    padding: 100px 0;
    background: var(--bg-soft);
}
.st20-section-header {
    text-align: center;
    margin-bottom: 64px;
}
.st20-section-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.st20-section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 8px;
}
.st20-section-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}
.st20-masonry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(200px, auto);
    gap: 24px;
}
.st20-masonry-item {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-masonry-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.st20-masonry-large {
    grid-column: span 2;
}
.st20-masonry-tall {
    grid-row: span 2;
}
.st20-masonry-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}
.st20-masonry-item h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-masonry-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}
.st20-masonry-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* 客户评价：大卡片 */
.st20-testimonials-large {
    padding: 100px 0;
    background: var(--white);
}
.st20-testimonials-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.st20-testimonial-card {
    background: var(--bg-soft);
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.st20-testimonial-quote {
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 20px;
}
.st20-testimonial-text {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text);
    margin-bottom: 32px;
}
.st20-testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}
.st20-author-avatar {
    width: 56px;
    height: 56px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}
.st20-author-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--dark);
}
.st20-author-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* 项目：全宽卡片 */
.st20-projects-fullwidth {
    padding: 100px 0;
    background: var(--bg-soft);
}
.st20-projects-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.st20-project-card-full {
    display: grid;
    grid-template-columns: 400px 1fr;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-project-card-full:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}
.st20-project-image {
    width: 100%;
    height: 100%;
    min-height: 280px;
    overflow: hidden;
}
.st20-project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.st20-project-content {
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.st20-project-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    width: fit-content;
}
.st20-project-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
}
.st20-project-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
}

/* 优势：图标墙 */
.st20-advantages-wall {
    padding: 100px 0;
    background: var(--white);
}
.st20-advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.st20-advantage-tile {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, background 0.3s ease;
}
.st20-advantage-tile:hover {
    transform: translateY(-4px);
    background: var(--primary);
    color: var(--white);
}
.st20-advantage-tile:hover .st20-tile-icon,
.st20-advantage-tile:hover h3,
.st20-advantage-tile:hover p {
    color: var(--white);
}
.st20-tile-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}
.st20-advantage-tile h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-advantage-tile p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 新闻：时间线 */
.st20-news-timeline {
    padding: 100px 0;
    background: var(--bg-soft);
}
.st20-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}
.st20-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}
.st20-timeline-item {
    position: relative;
    margin-bottom: 48px;
    padding-left: 40px;
}
.st20-timeline-item::before {
    content: '';
    position: absolute;
    left: -48px;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: 0 0 0 2px var(--primary);
}
.st20-timeline-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.st20-timeline-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.st20-timeline-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-timeline-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}
.st20-timeline-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* 联系：居中卡片 */
.st20-contact-card {
    padding: 100px 0;
    background: var(--white);
}
.st20-contact-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}
.st20-contact-header {
    text-align: center;
    margin-bottom: 48px;
}
.st20-contact-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--dark);
}
.st20-contact-header p {
    font-size: 1.05rem;
    color: var(--text-muted);
}
.st20-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 32px;
}
.st20-contact-info-card {
    background: var(--bg-soft);
    padding: 40px;
    border-radius: var(--radius-lg);
}
.st20-info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    font-size: 1rem;
    color: var(--text);
}
.st20-info-icon {
    font-size: 1.5rem;
}
.st20-contact-form-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.st20-contact-form-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--dark);
}
.st20-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.st20-contact-form-card input,
.st20-contact-form-card textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
}
.st20-contact-form-card input:focus,
.st20-contact-form-card textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.st20-contact-form-card textarea {
    margin-bottom: 24px;
    resize: vertical;
}

@media (max-width: 1024px) {
    .st20-hero-magazine {
        grid-template-columns: 1fr;
    }
    .st20-hero-image-wrapper {
        min-height: 400px;
    }
    .st20-values-grid {
        grid-template-columns: 1fr;
    }
    .st20-masonry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .st20-masonry-large {
        grid-column: span 1;
    }
    .st20-testimonials-stack {
        grid-template-columns: 1fr;
    }
    .st20-project-card-full {
        grid-template-columns: 1fr;
    }
    .st20-advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .st20-contact-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 768px) {
    .st20-hero-title {
        font-size: 2.5rem;
    }
    .st20-masonry-grid {
        grid-template-columns: 1fr;
    }
    .st20-advantages-grid {
        grid-template-columns: 1fr;
    }
    .st20-form-row {
        grid-template-columns: 1fr;
    }
}

/* 招商加盟页面样式 */
.st20-join-intro {
    text-align: center;
    margin-bottom: 48px;
}
.st20-join-intro h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark);
}
.st20-join-intro p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 900px;
    margin: 0 auto;
}
.st20-join-features h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 32px;
    text-align: center;
    color: var(--dark);
}
.st20-features-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.st20-feature-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.st20-feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.st20-feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-feature-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}
@media (max-width: 1024px) {
    .st20-features-list {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .st20-features-list {
        grid-template-columns: 1fr;
    }
}

/* 页脚样式 */
.st20-site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.8);
    margin-top: 120px;
}
.st20-footer-top {
    padding: 64px 0 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.st20-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}
.st20-footer-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}
.st20-footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 24px;
    color: rgba(255, 255, 255, 0.7);
}
.st20-footer-social {
    display: flex;
    gap: 12px;
}
.st20-social-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    text-decoration: none;
    font-size: 1.2rem;
    transition: background 0.2s ease, transform 0.2s ease;
}
.st20-social-item:hover {
    background: var(--primary);
    transform: translateY(-2px);
}
.st20-footer-heading {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}
.st20-footer-links {
    list-style: none;
}
.st20-footer-links li {
    margin-bottom: 12px;
}
.st20-footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}
.st20-footer-links a:hover {
    color: var(--white);
}
.st20-footer-friendlinks {
    padding: 32px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.st20-friendlinks-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}
.st20-friendlinks-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.st20-friendlink-item {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}
.st20-friendlink-item:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}
.st20-footer-bottom {
    padding: 24px 0;
    text-align: center;
}
.st20-footer-bottom .st20-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}
.st20-copyright {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}
.st20-icp-link,
.st20-sitemap-links a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
}
.st20-icp-link:hover,
.st20-sitemap-links a:hover {
    color: var(--white);
}
.st20-sitemap-links {
    display: flex;
    gap: 16px;
}
@media (max-width: 1024px) {
    .st20-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    .st20-footer-grid {
        grid-template-columns: 1fr;
    }
    .st20-footer-bottom .st20-container {
        flex-direction: column;
        gap: 12px;
    }
}

/* 侧边栏导航样式 */
.st20-sidebar-nav {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    background: var(--dark);
    color: var(--white);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
}
.st20-sidebar-nav.st20-open {
    transform: translateX(0);
}
.st20-sidebar-header {
    padding: 32px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.st20-sidebar-logo {
    text-decoration: none;
    color: var(--white);
}
.st20-logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.st20-sidebar-menu {
    flex: 1;
    padding: 24px 0;
}
.st20-menu-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}
.st20-menu-item:hover,
.st20-menu-item.st20-active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border-left-color: var(--primary);
}
.st20-menu-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}
.st20-menu-text {
    font-size: 0.95rem;
    font-weight: 500;
}
.st20-sidebar-footer {
    padding: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.st20-sidebar-cta {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: var(--white);
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 600;
    transition: background 0.2s ease;
}
.st20-sidebar-cta:hover {
    background: var(--primary-dark);
}
.st20-sidebar-toggle {
    position: fixed;
    top: 24px;
    left: 24px;
    z-index: 1001;
    width: 48px;
    height: 48px;
    background: var(--primary);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
    transition: transform 0.2s ease;
}
.st20-sidebar-toggle:hover {
    transform: scale(1.05);
}
.st20-sidebar-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    border-radius: 1px;
    transition: all 0.3s ease;
}
.st20-sidebar-toggle.st20-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.st20-sidebar-toggle.st20-active span:nth-child(2) {
    opacity: 0;
}
.st20-sidebar-toggle.st20-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
.st20-sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.st20-sidebar-overlay.st20-active {
    opacity: 1;
    visibility: visible;
}
/* 桌面端：侧边栏始终显示 */
@media (min-width: 1024px) {
    .st20-sidebar-nav {
        transform: translateX(0);
    }
    .st20-sidebar-toggle {
        display: none;
    }
    .st20-sidebar-overlay {
        display: none;
    }
    body {
        padding-left: 260px;
    }
}
@media (max-width: 1023px) {
    body {
        padding-left: 0;
    }
}

/* 新闻页面样式 */
.st20-news-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.st20-news-article {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 32px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-news-article:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}
.st20-news-date-box {
    text-align: center;
    padding: 20px;
    background: var(--bg-soft);
    border-radius: var(--radius);
}
.st20-date-day {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}
.st20-date-month {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}
.st20-date-year {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}
.st20-news-content-box {
    display: flex;
    flex-direction: column;
}
.st20-news-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    width: fit-content;
    margin-bottom: 16px;
}
.st20-news-content-box h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-news-content-box p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 16px;
    flex: 1;
}
.st20-news-readmore {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}
@media (max-width: 768px) {
    .st20-news-article {
        grid-template-columns: 1fr;
    }
    .st20-news-date-box {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 16px;
    }
    .st20-date-day {
        font-size: 2rem;
    }
}

/* 服务页面样式 */
.st20-service-intro {
    text-align: center;
    margin-bottom: 48px;
}
.st20-service-intro h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark);
}
.st20-service-intro p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}
.st20-service-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}
.st20-stat-box {
    text-align: center;
    padding: 32px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
}
.st20-stat-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}
.st20-stat-label {
    font-size: 1rem;
    color: var(--text-muted);
}
.st20-service-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}
.st20-service-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-service-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}
.st20-service-icon {
    font-size: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.st20-service-details h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-service-details p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
}
@media (max-width: 768px) {
    .st20-service-stats {
        grid-template-columns: 1fr;
    }
    .st20-service-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* 招聘页面样式 */
.st20-job-intro {
    text-align: center;
    margin-bottom: 48px;
}
.st20-job-intro h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark);
}
.st20-job-intro p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}
.st20-job-benefits h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 32px;
    text-align: center;
    color: var(--dark);
}
.st20-benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.st20-benefit-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.st20-benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.st20-benefit-item h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-benefit-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}
@media (max-width: 1024px) {
    .st20-benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .st20-benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* 反馈页面样式 */
.st20-feedback-form {
    max-width: 700px;
    margin: 0 auto;
}
.st20-form-group {
    margin-bottom: 24px;
}
.st20-form-group label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}
.st20-form-group input,
.st20-form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
}
.st20-form-group input:focus,
.st20-form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.st20-form-group textarea {
    resize: vertical;
}

/* 联系页面样式 */
.st20-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}
.st20-contact-info-section h2,
.st20-contact-form-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--dark);
}
.st20-info-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.st20-info-row {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.st20-info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}
.st20-info-row strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}
.st20-info-row p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}
.st20-contact-form-section form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.st20-contact-form-section input,
.st20-contact-form-section textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.2s ease;
}
.st20-contact-form-section input:focus,
.st20-contact-form-section textarea:focus {
    outline: none;
    border-color: var(--primary);
}
@media (max-width: 1024px) {
    .st20-contact-grid {
        grid-template-columns: 1fr;
    }
}

/* 企业文化页面样式 */
.st20-culture-values h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 40px;
    text-align: center;
    color: var(--dark);
}
.st20-values-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.st20-value-item {
    padding: 32px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
}
.st20-value-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-value-item p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
}
@media (max-width: 768px) {
    .st20-values-list {
        grid-template-columns: 1fr;
    }
}

/* 案例页面样式 */
.st20-case-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.st20-case-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}
.st20-case-image {
    width: 100%;
    height: 100%;
}
.st20-case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.st20-case-item:hover .st20-case-image img {
    transform: scale(1.1);
}
.st20-case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.st20-case-item:hover .st20-case-overlay {
    opacity: 1;
}
.st20-case-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    width: fit-content;
}
.st20-case-overlay h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}
.st20-case-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
}
@media (max-width: 1024px) {
    .st20-case-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .st20-case-gallery {
        grid-template-columns: 1fr;
    }
}

/* 关于我们页面样式 */
.st20-about-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.st20-about-image-section img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.st20-about-text-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 32px 0 16px;
    color: var(--dark);
}
.st20-about-text-section h2:first-child {
    margin-top: 0;
}
.st20-about-text-section p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.st20-section-heading {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 32px;
    color: var(--dark);
    text-align: center;
}
.st20-business-tiles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.st20-business-tile {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.st20-business-tile:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.st20-business-tile .st20-tile-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}
.st20-business-tile h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.st20-business-tile p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}
@media (max-width: 1024px) {
    .st20-about-split {
        grid-template-columns: 1fr;
    }
    .st20-business-tiles {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .st20-business-tiles {
        grid-template-columns: 1fr;
    }
}

/* ========== 模板20 视觉主题：蓝色主色 + 侧栏 + Masonry ========== */
body { background: #f8fafc; }
.st20-hero-magazine { min-height: 85vh; }
.st20-masonry-item, .st20-value-card { border-radius: 20px; box-shadow: 0 8px 28px rgba(37,99,235,0.08); }